Instance Method


Performs the receiver’s non-concurrent task.


func main()


The default implementation of this method does nothing. You should override this method to perform the desired task. In your implementation, do not invoke super. This method will automatically execute within an autorelease pool provided by NSOperation, so you do not need to create your own autorelease pool block in your implementation.

If you are implementing a concurrent operation, you are not required to override this method but may do so if you plan to call it from your custom start() method.

See Also

Executing the Operation

func start()

Begins the execution of the operation.

var completionBlock: (() -> Void)?

The block to execute after the operation’s main task is completed.